It was 51 years ago, on April 28, that Expo 67 opened in Montreal, ushering in a summer of celebration for Canada’s 100th birthday. The World’s Fair featured pavilions from 60 nations showcasing “Man and His World.” More than 50 million visitors passed through the grounds over six months, including familiar faces like Queen Elizabeth, Jackie Kennedy and Bing Crosby. In this editorial from April 22, 1967, The Catholic Register put the expectations of Expo into perspective:

April 22 marks the birthday of Robert Oppenheimer, born 104 years ago and famously destined to become known as “the father of the atomic bomb” because of his work on the secret Manhattan Project during the Second World War. When news of the weapon of mass destruction became public with the bombing of Hiroshima, Japan, on Aug. 6, 1945, theologians jumped in on the moral debate over its use. Here is a report from the Aug. 18, 1945 issue of The Catholic Register:

April 15 marked the anniversary of one of the worst maritime tragedies — the sinking of the Titanic in 1912, when more than 1,500 died. Our regular visit to The Catholic Register Archive reveals some of the lessons and heroes of that disaster from this edited report in the April 25, 1912 issue:

Many of us have visions of retiring to a warm spot and taking it easy, but not Sr. Fay Trombley. The 77-year-old former professor at Newman Theological College in Edmonton is spending her “retirement” in Tuktoyaktuk, N.W.T., tirelessly working to ease the hunger, unemployment and spiritual needs of people in the Arctic.

VATICAN – Catholic universities are "called to be workshops of dialogue and encounter in the service of truth, justice and the defense of human dignity at every level," Pope Francis told a delegation from Pennsylvania's Villanova University.